Q3:U.S. track and field athlete Bob Beamon jumped 8.9 meters in the long jump competition in the 1968 Olympic Games.How many centimeters did this score exceed the world record at that time?

• 问:美国著名田径选手鲍勃-比蒙在1968年奥运会跳远项目上跳出了8.；90米的成绩，请问这一成绩超出了当时的世界纪录多少厘米？